Ah yes, why not? The last time we did this, it was March 2011, so it's been almost a year since we offered a little insight into what kind of operating systems and browsers you, dear readers, are using. Nothing particularly earth-shattering going on here.

Seeing these numbers I remember those news about the failure of Linux on desktops.

While the number of linux desktops is said to be between 1% and 2% of the global users, we can see that there are a higher percentage between IT skilled users.

In my country (Brazil), Linux usage (in general, not only for geeks) even surpasses Mac OS X usage by a high margin. Even with Microsoft pressure on hardware makers, it is more common and cheap to buy a desktop/notebook with Linux pre-installed.

Yes, such web stats tend to underestimate Linux installations for various reasons ("in general, not only for geeks" usage: because, say, they're more likely to be company or school PCs used less for browsing, and if - then probably more on ~local sites), and overestimate OSX ones (owned by the most affluent & web active users, more on ~international sites), but still ...the exact situation in Brazil, how you describe, seems unlikely?